baber/WOPTO huggingface dataset:
Patent JP-H01261135-A (JP)
Title: Sheet supply device
Inventor: TAKAHASHI TETSUO
IPC: B65H3/12
Filed: 1988-04-08
Abstract: PURPOSE:To attain cost-down of and simplify a sheet supply device by transporting sheets at certain intervals with a belt run continuously and with the negative pressure impressed continuously, and supplying sheets and stopping without turning on and off the negative pressure. CONSTITUTION:A belt 1 is rotated continuously at all times, and the negative pressure is impressed continuously, and when a group of sheet attracting holes are positioned on the uppermost one of the sheets stacked horizontally, the leading sheet 3 is attracted by a belt 1 and transported. Until reaching a transport roller 2, the leading sheet 3 is transported while attracted to the belt 1 by the suction force of the sheet attracting holes. The belt 1 continues rotating, and when the sheet attracting holes are positioned on the next page sheet 4, it is attracted by the belt 1 and transported. Therein the relation A=L+l shall hold for, where A is circumferential length of the belt 1 of sheet supply device, L sheet intervals, and l sheet length in the feeding direction. Thus the sheets S can be transported at a constant interval L in the condition that the belt 1 is rotated continuously and the negative pressure is impressed continuously.
Patent JP-H03286870-A (JP)
Title: Ink jet head
Inventor: SERIZAWA NAOKI
IPC: B41J2/16
Filed: 1990-04-02
Abstract: PURPOSE:To improve printing quality by making the shape of a nozzle at an ink inlet to be an ellipse and at an ink outlet to be a circle having a diameter with the same breadth of the ellipse or less than that and arranging the nozzle in a direction of the breadth of the ellipse so as to form a high density ink jet array. CONSTITUTION:An elliptic resist 20 is selectively formed on a board consisting of a comparatively thick member by the photo-lithography process and an elliptic hole is formed by etching and the resist is removed. Then, a circular resist 20 is selectively formed on a master board 21 by the photolithography process, an Ni is formed by the electrocasting process thereon, a thin board having a circular hole with a high precision bore diameter is formed, and a nozzle formation board 14B is removed from the master board 21. Then, a nozzle formation board 14A is aligned with the nozzle formation board 14B precisely so as to be coupled by the thermal diffusion method, thereby providing a nozzle formation board 14.
Patent JP-H07265528-A (JP)
Title: Pinball game machine
Inventor: UGAWA SHOHACHI
IPC: E05B61/00
Filed: 1994-03-31
Abstract: PURPOSE:To provide a pinball game machine which can enhance the operability in unlocking operation of a transparent board holding frame. CONSTITUTION:The width dimension of a transparent board holding frame 50 is approximately the same as the width dimension of a frame base body 2, and also a cylinder lock 219, wherein the key of a lock device can be inserted and operated, fronts on the end on open side of the frame base body 2 being below the transparent board holding frame 50. Hereby, it follows that the open position of the transparent board holding frame 50 and the position of operating the key become in a step difference shape, and that the transparent board holding frame 50 does not hit the hand operating the key at release of the transparent board holding frame 50, so the operability can be enhanced.
Patent JP-S63253218-A (JP)
Title: Abnormality detecting method for encoder
Inventor: ASAKAWA EIJI
IPC: G01D5/12
Filed: 1987-04-10
Abstract: PURPOSE:To accurately detect abnormality of a position detection signal by processing an analog signal from a position detection sensor and detecting the abnormality. CONSTITUTION:An encoder 1 is provided with a light source 1, a scale provided with slits 3a, etc., at specific intervals, and two photodetectors 4a and 4b. The photodetectors 4a and 4b are arranged so that their output positions are 90 deg. different. Their outputs are squared by multipliers 5a and 5b and added together by an operational amplifier 6a. Namely, the output of the operational amplifier 6a is nearly constant because sin<2>theta+cos<2>theta=1, where sintheta is the output of the photodetector 4a and costheta is the output of the photodetector 4b. For the purpose, a comparing circuit part 7 decides this output to determine the abnormality unless the output is in a prescribed range. The decision on the abnormality is made not digitally, but on an analog basis, so the influence of an error in digitization is eliminated.
Patent JP-S59214009-A (JP)
Title: High variable power zoom lens for definite distance
Inventor: ITOU TAKAYUKI
IPC: G02B15/20
Filed: 1983-05-19
Abstract: PURPOSE:To obtain a high variable power variation ratio of 4 by providing four lens groups which have a negative, a positive, a negative, and a positive focal length successively from a subject side, and allowing this optical system to meet specific requirements. CONSTITUTION:The 1st, the 2nd, the 3rd, and the 4th lens groups are all moved mechanically to vary the power, and a subject plane and an image plane are held at a specific distance to meet various requirements shown by inequalities I -X. In the inequalities, N1 is the refereactive index of the (d) line of the 1st lens, rIIIa and rIIIb are the radii of curvature of the image-side concave surface and image-side concave surface of the subject-side negative lens group in the 3rd lens, and NII is the mean value of the refractive index of the (d) line of the lens in the 3rd lens group; rIV1 is the radius of curvature of the 1st surface of the 4th lens group, and fs is the focal length of the whole system on the low-power side; ms is the lateral power of the low power side and m1s, m12s, and m123s are the composite lateral power values of the 1st, the 2nd, and the 1st- 3rd lens groups on the low-power side; and Xi is the extent of movement of the (i)th lens group and fBS is the back focus of the low power side.
Patent JP-S59212784-A (JP)
Title: Schering bridge circuit
Inventor: ENDOU TAKESHI
IPC: G01R27/26
Filed: 1983-05-19
Abstract: PURPOSE:To minimize the residual inductance of a Schering bridge circuit and improve the measuring accuracy, by using a shunt which has a large resistance value and is small in size as the shunt of the circuit and installing the shunt in the main body of the Schering bridge circuit together with an airtight case. CONSTITUTION:A shunt 13 which has a large resistance value and is small in size is prepared by putting the shunt 13 in an airtight case 16 equipped with a refrigerant inlet 14 and refrigerant outlet 15 and forcedly cooling the shunt 13 with an inter refrigerant, such as insulating liquid of insulating oil, etc., or inert gas of nitrogen gas, freon gas, etc. Then the shunt 13 is installed into the main body of a Schering bridge 9 together with the airtight case 16. When the Schering bridge 9 is constituted in such a manner, its residual inductance can be minimized and the tan delta error can also be reduced. Therefore, the mesuring accuracy can be improved.
Patent JP-H04320508-A (JP)
Title: Clock switching circuit
Inventor: KOHIYAMA KIYOYUKI
IPC: G06F1/06
Filed: 1991-04-19
Abstract: PURPOSE:To eliminate components which are common to both clocks and decrease the number of external components by composing a 1st couple of a 1st and a 4th switch and turning off the other couple when one couple is turned on. CONSTITUTION:When the switches S1 and S4 in the 1st couple are turned on, a 1st clock signal CK1 is inputted to circuits C1-Cn through an electric conductor L. Therefore, the two clock signals CK1 and CK2 can be switched without any trouble. Switches S1-S4 and resistance R1 and R2 each participates in the selecting operation of either of the clock signals CK1 and CK2. The 1st and 3rd switches S1 and S3 and 1st resistance can, therefore, be included in a 1st clock signal generating means 1. Further, the 2nd and 4th switches S2 and S4 and 2nd resistance R2 can be included in a 2nd clock signal generating means 2. Consequently, the number of external components can be decreased.
Patent JP-S5713801-A (JP)
Title: Interdigital band-pass filter
Inventor: HATANAKA HIROSHI
IPC: H01P1/205
Filed: 1980-06-28
Abstract: PURPOSE:To facilitate manufacture and to reduce variance in quality by forming a filter by using resonator constituent elements, each made of an inductive body in a rectangular-prism shape. CONSTITUTION:A hole gap 22 is made nearly in the center of each inductive body 22 in a rectangular-prism shape, and a metallic film 23 is adhered to a proper depth on its internal wall to form resonator constituent elements 44-47. Similarly, constituent elements 42 and 43 of an input and output transformer are formed. Those elements 42 and 43, and 44-47 are fitted, differing in direction, in housing 41 forming an external conductor at intervals 48-50 to form a filter. Thus, each element is made of the inductive body having uniform density, and since the structure is simple, the manufacture of the filter is facilitated, reducing variance in quality. Varying the intervals of elements adjusts the characteristics of the filter.
Patent JP-H05255460-A (JP)
Title: Resin composition, method for forming transparent thin film and transparent thin film
IPC: C08F220/20
Filed: 1992-03-13
Abstract: PURPOSE:To obtain a resin composition capable of forming a transparent thin film only on a given region by making a thin film on a colored resin film, curing only a resin of the colored resin film on the given region through a mask, etc., dissolving a resin of an uncured part with a basic aqueous solution and removing and to provide a transparent thin film, a cured material of the resin composition. CONSTITUTION:A photosensitive resin composition comprising a photopolymerizable acrylate oligomer, a bi- or polyfunctional photopolymerizable acrylate monomer, a photopolymerizable compound having an ethylenically unsaturated double bond and a carboxyl group, a photopolymerization initiator, an organic solvent and optionally another resin. A film of colored resin is coated with the photosensitive resin composition, only a resin of the colored resin film in a given region is cured with ultraviolet rays through a mask, etc., a resin in an uncured part is dissolved and removed with a basic aqueous solution to form a transparent thin film only on the given region.
Patent JP-H0257653-A (JP)
Title: Al-sn bearing alloy
Inventor: FUJITA MASAHITO
IPC: C22C21/00
Filed: 1989-04-07
Abstract: PURPOSE:To obtain the title alloy having excellent fatigue resistance, seizure resistance and wear resistance by incorporating specific amounts of Pb and Si into an Al-Sn bearing alloy adding specific small amounts of Sb thereto and depositing Si grains in a spherical or almost spherical shape into an Al matrix. CONSTITUTION:As an Al-Sn bearing alloy, by weight, 0.01 to 0.1% Sb is added to a bearing alloy contg. 7 to 20% Sn, 0.1 to 5% Pb and 1 to 10% Si, contg. 0.3 to 3.0% independent Zn or 0.3 to 3.0% total of Zn, Cu and Mg, furthermore contg. 0.01 to 0.1% total of one or more kinds among Cr, Mn, Fe, Ni, Co, Ti, V and Zr as deposition hardening-type matrix strengthening elements and the balance Al. An Sn-Pb alloy 3 is deposited into an Al matrix 1 adjacently to spherical Si grains therein, by which the Al-Sn bearing alloy having drastically improved lubricity can be obtd.
Patent JP-H03286513-A (JP)
Title: Capacitor
Inventor: MATSUMOTO SUSUMU
IPC: H01G4/224
Filed: 1990-04-03
Abstract: PURPOSE:To surely bond a sealing piece to an outer case by a method wherein recessed parts are formed, along bonding parts, in either opening edges or the bonding parts of the sealing piece at the outer circumference of a resin case, an adhesive is injected from injection holes made in the sealing piece and the sealing piece is bonded to the outer case. CONSTITUTION:Recessed parts 6 are formed, along contact parts, in either opening edges 3 of an outer case 1 or a sealing piece 4; adhesive injection holes 7 corresponding to the recessed parts 6 and protruding parts 8 used to guide the sealing piece 4 to an opening 3' of the outer case are made in the sealing piece 4. The protruding parts 8 of the sealing piece 4 are fitted to the opening 3' of the outer case 1; the face having the recessed parts 6 of the sealing piece 4 is brought into contact with the opening edges 3 of the outer case 1; a cyanoacrylate-based adhesive 5 in a proper quantity is injected from the adhesive injection holes 7 so as to fill gaps between the recessed parts 6 and the contact parts of the sealing piece 4 with the outer package case 1; the sealing piece and the outer case are bonded. When the cyanoacrylate-based adhesive has a viscosity of 10cPs or smaller at room temperature, the gaps can be filled completely with the adhesive 5.
Patent JP-S5515177-A (JP)
Title: Unit of apparatus
Inventor: YANAGAWA NOBUYUKI
IPC: G03G21/10
Filed: 1978-07-20
Abstract: PURPOSE: To enable a developing unit to assuredly withdraw from an image carrier, by restricting the effect of moment due to drive force or the like to minimum in the magnetic brush developing unit or the like of an electrophotographic copier.  
     CONSTITUTION: Developing unit 1 is swingably mounted on shaft 8 of the main body of copier and developing roller 3 of unit 1 is rotated by drive of drvive gear 7 supported by the main body of copier through driven gear 6 fixed to unit 1. The positions of both gears and shaft 8 are arranged so as to direct direction PB of the power transmission from gear 7 to gear 6 almost toward shaft 8. As a result, the moment with respect to shaft 8 due to the drive force of gear 7 almost becomes zero, and unit 1 can be surely withdrawn from photosensitive drum 10 (image carrier) without being adversely affected by exterior drive force and providing an interior drive force source in its unit, when it is necessary to withdraw unit 1 from drum 10 in order to avoid developer blocking occurring between roller 3 and drum 10 in order to avoid developer blocking occuring between roller 3 and drum 10 in  developing. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H10263315-A (JP)
Title: Filtering and filtering device
Inventor: HISAYOSHI YOSHINORI
IPC: B01D29/62
Filed: 1997-03-25
Abstract: PROBLEM TO BE SOLVED: To provide a filtering method and a filtering device for effectively filtering fine pollutant without complicating he device and deteriorating filtering quantity performance. SOLUTION: An upstream side filter tank main body 2 and a downstream side filter tank main body 3 respectively having an upstream side filter medium layer 11 and a downstream side filter medium layer 18 formed by overlaying the filter media consisting of a lump of fibers, are connected with a water feed pipe 20 and, by making the filter area of the downstream side filter medium layer 18 smaller than the filter area of the upstream side filter medium layer 11, a flow speed of water passing through the downstream side filter medium layer 18 and fine particles in filtering water at a front side against the filter medium layer 11 are accelerated and filtered.
Patent JP-S60233241-A (JP)
Inventor: MIYAHARA SHINJIROU
IPC: E03D9/08
Filed: 1984-05-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S58206204-A (JP)
Title: Reflector antenna device
Inventor: IWASAKI HISAO
IPC: H01Q19/02
Filed: 1982-05-27
Abstract: PURPOSE:To prevent the characteristic deterioration of a reflector antenna which is due to the snow, by using a driving device to give vibrations only to the reflector. CONSTITUTION:When it begins to snow, the vibrations having satisfactorily small amplitude with the using frequency are applied only to a reflector 10 by a vibration driving device 13. As a result, the oscillating waves are always produced on the surface of the reflector 10 to prevent attachment of the snow.
Patent JP-H05286664-A (JP)
Title: Shaft block of unit type elevator and method for mounting shaft block
Inventor: TSUCHIDA YUTAKA
IPC: B66B7/00
Filed: 1992-04-09
Abstract: PURPOSE:To reduce the weight of a shaft block for an elevator system in such an arrangement that a plurality of shaft blocks to constitute an elevator shaft are laid one over another and fixed to the bulding as object, by placing each suspension member protruding at the cover-part of the shaft block outer frame on a floor joist of the building. CONSTITUTION:Each shaft block 1 for elevator system has an outer frame 6 as high substantially as the vertical dimension between the floors 2a, 2b of a building 2, and this outer frame 6 is fitted with supporting members 9a, 9b to support a hall hatch 8, a guide rail for elevator cage, and guide rail for balance weight. In the over-part of this outer frame 6, suspension members 10a, 10c are furnished which can protrude in the horizontal direction. When the shaft block 1 is to be installed, these suspension members 10a, 10c are rotated round pivot pins to put them in the accommodated state and lifted to the level of the floor 2a, and their over-parts are inserted in respective openings 3a. Then the suspension members 10a, 10c are rotated until they protrude in the horizontal direction and are supported on respective floor joists 4a, 5a.
Patent JP-S5712719-A (JP)
Title: Method and apparatus for improving poor soil
Inventor: DEGUCHI TOSHIHIRO
IPC: E02D3/12
Filed: 1980-06-27
Abstract: PURPOSE: To perform soil improving work without moving a soil treatment barge by extending a pair of guide rails form a soil treatment barge floating on poor soil, by providing a pontoon at the free end of said guide rails and by mounting a mixing unit between the guide rails in a manner that the mixing unit is allowed to move back and forth as well as up and down.  
     CONSTITUTION: A pair of guide rails 3 are extended from the side of a soil treatment barge A floating on poor soil. A pontoon 6 is provided below the guide rails at the free end thereof and a pair of movable rails 9 are supported by the guide rails 3. A mixing device B is mounted on the rails 9 in a manner that the mixing device B is allowed to move back and forth and up and down. The mixing device B is provided with a pair of mixing blades 13. Hardening agent is injected into the poor soil through the rotating pair of mixing blades, then mixed and stirred. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S59214779-A (JP)
Title: Detection of short-circuited point for printed circuit board
Inventor: KOBAYASHI TADASHI
IPC: G01R31/02
Filed: 1983-05-20
Abstract: PURPOSE:To achieve the detection quickly and accurately by a method wherein a pulse current or AC current flows between conductors belonging to a different circuit containing short-circuited points and a detection element scans along one conductor to detect a point at which the flow of current shifts to the other conductor. CONSTITUTION:An oscillator 6 is connected between terminals 9 and 12 of two conductors 7 and 8 forming a circuit containing a short-circuiting detected with an automatic inspector or a visual inspection to run a pulse current or an AC current and a detection element 1 scans along one conductor to detect the presence of current by an electromagnetic induction. The electromagnetic induction generates an electromotive force to sound a buzzer 3 but as the buzzer sound becomes weaker whereever passing by a short-circuited point 14 thereby idenficiation of the short-circuited point where the flow of current shifts to the other conductor.
Patent JP-S5714782-A (JP)
Title: Timer
Inventor: SUGIHARA TOSHIO
IPC: G04F1/00
Filed: 1980-06-30
Abstract: PURPOSE:To improve accuracy of simple type timer which uses a spring by controlling the rotation of a timer cam by operating a gang with the use of crystal oscillation output. CONSTITUTION:When a timer is set by winding a spring by turning a set knob 2 clockwise, a following cam 11 is turned together with a gang gear through pin 10 after engaging a master cam 9 with a knob. Then, a stopper is released by a set lever 26 and a switch 25 is connected to a contact 25c. Under this condition, if a start switch 4 is closed, a gate 28 is opened and the output of a crystal oscillator 26 is added. And, pulse having the period of a minute is generated from frequency divided circuit 27. By using this pulse, gang gear 14 is turned counterclockwise at every minute until the switch 25 is connected to the contact 25b through the cams 11 and 9 when timer time passes through a lever 16 controlled by a transistor 31 and a solenoid 24. Consequently, the accuracy of a simple timer which uses springs is improved.
Patent JP-H01261688-A (JP)
Title: Oil supplying mechanism for fixing device
Inventor: SAKAI SHUNTA
IPC: G03G15/20
Filed: 1988-04-13
Abstract: PURPOSE:To prevent such a trouble that the toner offset onto a heater roll is again transferred to copying paper for a long period by providing an oil supplying means which supplies oil to a belt from the inside. CONSTITUTION:A heater roll 12 is press-contacted with a pressing member 11 at a fixing position (a) and fixes the toner image on the lower surface of copying paper rotationally fed counterclockwise. An oil supplying mechanism 13 is composed of a pair of oil rolls 14 and 14 and an oil-impregnating belt 15 which is made of reinforced felt, etc., stretched between the rolls 14 and 14 and brought into contact with the heater roll 12 over its full length. Therefore, oil is applied to the surface of the rotating heater roll 12 at the fixing time by means of the belt 15 which is made of felt, etc., and supplied with the oil by an oil supplying means 18 from the inside, and the surface of roll 12 is cleaned by the belt. The length of the belt can be set to several times as long as the circumference of the oil rolls 14. Thus such a trouble that the toner offset onto the heater roll is again transferred to recording paper can be prevented for a long period.
Patent JP-S5424445-A (JP)
Title: Air conditioning system
Inventor: YAMAMOTO MINORU
IPC: F24F1/00
Filed: 1977-07-27
Abstract: PURPOSE: To provide the subject system wherein introduced air is brought into contact with exhaust air through a filing material of an organic high molecular substance thereby to carry out exchang heat and moisture. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S57205333-A (JP)
Title: Manufacture of single-polarization single-mode optical fiber
Inventor: MIYA TETSUO
IPC: C03B37/012
Filed: 1981-06-12
Abstract: PURPOSE:To manufacture a single-polarization single-mode optical fiber with superior linearly polarizing characteristics by arranging an even number except 2 of glass rods for applying stress around a base material for a core and by heating and drawing them together with a glass pipe for a jacket. CONSTITUTION:A base material 4 for a core formed by covering glass 5 for a core with glass 6 for a synthetic clad, glass rods 7, 8 for applying stress and glass rods 9, 10 for applying stress are arranged in a glass pipe 11 for a jacket as shown by the figure. In this state, the glass pipe 11 is melted by heating to 2,000 deg.C with a resistance heating furnace and drawn to manufacture the desired single-polarization single-mode optical fiber. The glass 5 consists of GeO2 and SiO2, and the glass 6 is made of SiO2. Ths glass rods 7, 8 are made of B2O3- SiO2 glass, and the glass rods 9, 10 are made of TiO2-SiO2 glass.